Glider recoveries (Ramses, Pelagia), then battery replacement, reballasting, redeployment (at LB2). Acrobat surveys, upper slope to outer shelf CTD surveys, station sampling for water samples and primary productivity experiments (deck incubations and 'photosynthetron'). Attempted to survey a subsurface bloom in the mid-shelf (apparently Phaeocystis). During an Acrobat survey, the tow cable failed over upper slope. The Acrobat package was located with an acoustic range-finder but was too deep for a grapple attempt. With the very mild winter, shelf conditions were already post-winter (warm water across outer to mid-shelf) and not favorable for the winter bloom formation. Given the conditions the cruise was cut short by a few days.
Cruise information and original data are available from the NSF R2R data catalog.
Dataset | Brief Description |
---|---|
LB_2012_Glider_CTD | CTD data from gliders, Jan-Apr 2012 |
LB_2012_Ship_CTD-Optics-O2 | Long Bay vertical CTD profiles, bin-averaged, downcast |
LB_2012_Glider_DO_L2 | Time series of dissolved oxygen measured on an undulating glider, Jan-Apr 2012 |
LB_2012_Ship_Nutrients | Long Bay ship macronutrient concentrations: nitrate + nitrite, phosphate, silicate |
LB_2012_Ship_Chl | Chlorophyll and pheopigments from filtered water samples |
LB_2012_Ship_ADCP | Time series of current profiles measured with a vessel-mounted acoustic doppler current profiler |
Chief Scientist: James Nelson
Skidaway Institute of Oceanography
Co-Chief Scientist: Catherine Edwards
Skidaway Institute of Oceanography
• LB 2012 Leg 3 Cruise